Macros, 12 vitamins, 8 minerals, MyPlate food groups, and four dietary patterns. Calculator, label reader, and side-by-side food comparator.
40 entries
3 tools
Meal logger
Explore Nutrition Basics
Category 11 · Health & Life Skills
How your body works and the everyday knowledge that keeps it running.
Six interactive modules covering nutrition, exercise, sleep, mental health, medications, and first aid — built on AHA, Red Cross, NIH, CDC, AASM and NIMH guidelines. Mobile-first. Works offline.
6
Modules
240+
Entries
30+
Interactive tools
0
Your streak
The 6 modules
Tap a module to dive in, or jump to a specific topic.
Clickable front+back muscle silhouette, 24 major muscles, 12 compound exercises, training principles and energy systems. PR tracker, 1RM, HR zones, workout builder.
46 entries
5 tools
PR tracker
Explore Exercise Science
Sleep stages, circadian biology, evidence-based hygiene practices and major disorders. Interactive hypnogram, bedtime calculator, chronotype quiz, jet-lag plan, 30-day heatmap.
44 entries
4 tools
Sleep heatmap
Explore Sleep Science
Conditions, eight coping skills, therapy types and self-care. Sticky 988 crisis banner, breathing coach, 5-4-3-2-1 grounding, mood chart, CBT thought record, PHQ-2/GAD-2 educational screener.
34 entries
18 myths
4 tools
Explore Mental Health
Pharmacology concepts, 23 drug classes, routes and major interactions. Plasma-concentration simulator with AUC, receptor lab, interaction checker, FDA pill-ID 101.
59 entries
30 interactions
4 tools
Explore Medications
30 skills across CPR, bleeding control, choking, stroke, anaphylaxis and more. CPR metronome (adult/child/infant + hands-only), 6 branching scenarios, timed practice mode, kit checklist.
30 skills
6 scenarios
CPR trainer
Explore First Aid
Built on authoritative sources
Every fact in these modules is grounded in peer-reviewed clinical practice guidelines or government agency recommendations — not opinion. Where ranges are educational, defensible numbers from the cited sources are used. Cross-module deep links and a unified search make jumping between topics one tap.
USDA
NIH
FDA
CDC
ACSM
NSCA
AASM
NIMH
DSM-5-TR
APA
WHO
SAMHSA
988 Lifeline
DailyMed
Beers Criteria
AHA 2020/2024
Red Cross
ILCOR
Stop the Bleed
Educational only. These modules are not a substitute for medical, nutritional, or training advice from a qualified professional. In a crisis, call your local emergency number (US 911 / UK 999 / EU 112). Mental health crisis: 988 (US) or text HOME to 741741. Poison Control (US): 1-800-222-1222.